Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7eb82d18e12cdbb2eb5fcddc61f34b5b8388b432a17536d946c8efdb75f04d6d' 
  AND token = '99sqcOSxuRHH8d8fzv8063UKsYS0vzHvrJtmOAzFJKk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}